He put the tip of the blade into gus's shirt and then made an arc with his arm, as though cutting a circle . 他把尖刀伸进格斯的衬衫，随手用胳膊划了个弧圈，仿佛要圆圆地剐下一块肉来。
The etched section also reveals that multiple weld passes were made over the top of the original submerged arc weld pass . 从酸蚀断面还可以看出：在原自动埋弧焊的上面覆盖有多层焊道。
Now you have an arch made out of spotlights 现在你得到了一个由聚光灯构成的弧。
Scm control system of pulse plasma arc welding 脉冲等离子弧焊接的单片机控制系统
Cuhk launches a game development system curvair 中大开发具中国特色游戏平台弧飞
Safety requirements for portable arc welding transformers 小型弧焊变压器安全要求
Arc welding equipment - part 11 : electrode holders 弧焊设备.第11部分:电极握杆
Test methods for colour fastness to xenon arc lamp light 氙弧灯光色牢度的试验方法
The first figure is an arc followed by a line 第一个图形是一段弧，后跟一条直线。
In fact , i wonder if he ever heard a word i ' d spoken 龟悔, ?好钮?癸弧杠
